Meet Pixie Dust, the main character and antagonist of my MLP OC storyline!
In this universe, all the events in Gen 4 of MLP FIM are fictional. It is a popular series akin to Harry Potter in this world. However, Pixie Dust is way too obsessed with it and essentially becomes a wannabe-Twilight Sparkle. Unfortunately, she cares more about the princess aspect of Twilight's story and not the friendship part. Pixie Dust's goal is to become an alicorn and take over the kingdom (full on Mary-Sue plotline)
However, she is not very smart so she does a horrible job in actually carrying out her goal >< She is a Doofenshmirtz-level villain